3M 2250ME-iD Benutzerhandbuch
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4. Press Clear All [SK] to delete all stored depth
information.
− The operator may select the memory location
to store the depth readings by pressing Mem
Select
Select
[SK]. When the preferred location
appears on the screen, press Save [SK]. The
screen and memory location will populate
with the current information.
screen and memory location will populate
with the current information.
− Each memory location can be reviewed by
pressing Mem Select [SK].
5. Press Locate [5] to return to Locate Mode.
Frequencies
Active
Active frequencies are trace signals supplied by a 3M
™
Dynatel
™
Transmitter 2200
Series (577 Hz, 8 KHz, 33 KHz, or 133 KHz).
1. Select the same frequency that the transmitter is generating;
2. Press Locate [5]
3. Press Cable/Pipe [SK]
4. Press Freq [SK]
5. Press ACTIVE [SK Toggle] until the desired frequency is displayed in the soft key
command [9] (“Active” 577, 8K, 33K or 133K)
6. Press Locate [5] to return to Locate mode.
Power
Power frequencies refer to 50 or 60 Hz signals, and their harmonics that can be traced
without the use of a transmitter.
without the use of a transmitter.
50: Best for general locating of passive power.
50H (high harmonic): If the 50 choice appears to be responding slowly, or poorly, then
50H is the second choice for locating of passive power.
50H is the second choice for locating of passive power.
50L (low harmonic): Third choice for passive power locating. May be used when 50 or
50L is weak or erratic.
50L is weak or erratic.
100 Hz: Used for locating rectified AC power signals, often found on pipelines using
impressed current cathodic protection.
impressed current cathodic protection.
1. Press Locate [5]
2. Press Cable/Pipe [SK]
3. Press Freq [SK]